Keyless Bushing Flange Type Not Applicable For Bore Diameter 4 in Keyless Bushing Type Multi-Screw Locking Assembly Material Steel Outside Diameter 5 45/64 in Overall Width 4.488 in System of Measurement Inch Finish Oil Dipped Hub Contact Pressure 30 045.999 psi Maximum Transmitted Torque 1 734 ft-lb Outside Diameter Tolerance +0/-.002 in